AxenCor
Conceptual exterior view of the plant
Case 001 · Case study

FeSi Project, Angola

A milled ferrosilicon plant serving Angola's diamond mining industry.

Status: project under development — feasibility study completed; front-end engineering and ESIA phase in preparation.

Conceptual visualization — project under development
Sector
metallurgy — ferroalloys
Location
Cambambe, Cuanza Norte province, Angola
Product
DMS-grade milled ferrosilicon (150D and 270D grades)
Capacity
8,000 t/year of finished DMS FeSi (concept-stage estimate)
AxenCor role
strategy, techno-economic feasibility, financial structuring, preparation of the next phase
Decision supported
go / no-go and funding of the engineering phase
01

The market

Fact: diamond mines use dense medium separation (DMS) to concentrate heavy minerals. The process continuously consumes milled ferrosilicon, which forms the dense medium.

AxenCor analysis: for mine operators, local supply reduces lead times, logistics exposure and the inventory needed to cover imports. The project aims to meet that need from a plant located in Angola.

Ferrosilicon value chain for DMS circuits

Infographic — concept study, indicative estimates

02The decision

The project owner needed to establish whether a local plant was technically feasible, economically viable and ready for a financing discussion — and, if so, to prepare funding for the next stage.

03

The project

The planned facility covers raw material reception and storage, crushing, milling and classification, dust collection, finished product storage and packing, plus utilities and support buildings.

Production capacity: 8,000 t/year of finished DMS FeSi (concept-stage estimate), with a phased ramp-up.

Conceptual aerial view of the ferrosilicon processing unitConceptual visualization — project under development
Conceptual site layout

Conceptual site layout · Infographic — concept study, indicative estimates

04

The process

  1. 01Reception and storage of raw ferrosilicon
  2. 02Primary crushing (jaw crusher)
  3. 03Milling and classification to target particle size
  4. 04Dust collection and fines recycling
  5. 05Finished product storage, quality control and packing
Process flow diagram of the milling and classification unit

Process flow diagram — concept study · Click to enlarge

Overview of the process hallConceptual visualization — project under development

Conceptual visualization — project under development

Project location map
05

Location and logistics

The selected site is in Cambambe, Cuanza Norte province, Angola. It is designed to receive raw ferrosilicon by truck and ship finished product to the country's diamond mining operations.

Infographic — concept study, indicative estimates

06

Project economics

Concept-stage estimates (indicative business model, infographic below):

Production8,000 t/year of finished DMS FeSi
Indicative EBITDA≈ USD 8m/year
Indicative net income≈ USD 5m/year
Project economics at concept stage

Infographic — concept study, indicative estimates

07

Roadmap

Next step: a first funding tranche dedicated to front-end engineering design (FEED) and the environmental and social impact assessment (ESIA), ahead of the final investment decision.

Project development roadmap

Infographic — concept study, indicative estimates

08

AxenCor's role

  1. Opportunity qualification and market analysis
  2. Techno-economic feasibility study: process, capacity, equipment, plot plan, CAPEX / OPEX, risks
  3. Financial model, tranche-based financing plan and bank / investor materials (PT, EN)
  4. Preparation of the engineering and ESIA phase

AxenCor has not built, financed or operated the project: it is under development.